Hard drives containing some of Beyoncé's unreleased music, footage plans for future shows, and set lists have been stolen from the car of her choreographer, Christopher Grant, in Atlanta.

Two members of Beyoncé’s team said that their S.U.V. was broken into on July 8, just before a series of concerts in Atlanta, the authorities said. The police said a suspect had emerged.

Unreleased music by Beyoncé was stolen from a vehicle in Atlanta last week as the singer was in town for her Cowboy Carter Tour, according to police.